Here is the power supply that came with a cheap MP3 player. It is a power supply that takes in 230V mains power and outputs 5V at USB connector. What is wrong with this power supply? Let’s start with the electromechanical design. The mains connection pins that can be folded in and out at a →
Here are some tips how to arrange electrical power distribution on a small electrical lab (for example home lab). Grounded power outlet: The power that comes to your electrical lab should be grounded for your safety. Most everyone has 3-prong electrical outlets in their homes, with the third prong being called the “ground.” Extension cords →
Safety is important when arranging events. And there are a lot of things to consider to make the event safe for everybody (I know from experience from several event I have been working with). Control Geek blog writes about US Event Safety Alliance Document in Public Review. The Event Safety Alliance is a group of →
This is my second product test on Free Product Road Testing program by Farnell. This time the tested product is fused test leads for multimeter (Farnell Number: 428-4276). Why Fused Leads? You might ask why test leads need be fused. Trust me there are situations where this is a really good idea. Maintenance of electrical →
Safety must always remain priority number one when doing measurements with multimeters. Working safely, while making electrical measurements, is not rocket science. It’s a simple combination of careful planning, safe practices and using the right tools in the right way. The more voltage and current is present in the circuit, more careful you have to →
Fire When Ready – A Pyro-Electric Safety Primer is a great document on issues around controlling dangerous things electrically. The document tells the techniques used on pyro/fireworks electrical control. Quite similar practices are used in other control applications where potentially dangerous things are controlled using electrical circuits or electronics. →